Human Body Systems

Match the following vocab words to their definitions.

• the body's largest organ

• skin

• breaks down harmful substances

• brain

• sends electrical signals to other parts

• stomach

• help the body digest food; 2 sections

• intestines

• a muscular bag that holds food

• liver

Tags

NGSS.MS-LS1-7

Match the following

• act as filters catching waste in blood

• lungs

• pumps blood through body

• bladder

• holds urine

• kidneys

• secretes insulin to manage blood sugar

• heart

• air enters the mouth and travels here

• pancreas

Red Marrow: Blood Cells :: Yellow Marrow: _____

• stores fat

• allows flexibility

• provides energy

• stores blood vessels

The tibia and fibula are bones in which body part?

• arm

• leg

• chest

• skull

What is the purpose of the mandible?

• to allow the spine to bend and twist

• to support the body so a person can stand

• to chew and talk

• to produce red blood cells

What is the main purpose of a tendon?

• to attach muscles to bones

• to help a muscle contract

• to help a muscle relax

• to help digest food

Which statement about cardiac muscles is true?

• Cardiac muscles are voluntary.

• The heart gets weaker when it has to pump more.

• They spread blood throughout the human body.

• A person must think about making cardiac muscles move.

What is the main purpose of platelets?

• to take oxygen all over the body

• to clot blood when a person is cut

• to carry carbon dioxide

• to carry blood away from the heart

Red Blood Cells: Carry Oxygen :: White Blood Cells: _____

• destroy bacteria and viruses

• clot blood when a person gets cut

• produce plasma

• provides oxygen all over the body

What best describes the aorta?

• it carries blood back to the heart

• it connects arteries and veins

• it is the largest artery in the body

• it helps keep humans healthy